Question

Find a rational number
1.Having no its reciprocal.
2.Equal to its reciprocal.
3.Equal to its additive inverse.
4.Lies between 4 and 5.

Answer 1

1) 0 is the rational number which is not having it's reciprocal .

2) 1 is the rational number whose reciprocal is as same as the number .

-1 is also the rational number whose reciprocal is as same as the number.

3) Any rational number is equal to it's addictive inverse but it's sign is changed.

Eg , a + (-a) = 0 .

4) Rational number lying between 4 and 5 :

$\frac{4 + 5}{2} = \frac{9}{2}$
Rational numbers are those numbers which are in the form of p/q where p and q both are integers and q≠0 .

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